Speech samples were recorded of typical speech of 10 stutters, 10 stutters speaking without stuttering under delayed auditory feedback (DAF), and 10 nonstutters speaking normally. Results indicated that stutterer samples were judged as sounding significantly more unnatural than nonstutterer samples, and the DAF stutter-free samples sounded…

Listeners judged recordings of 10 hearing-impaired adolescents. Significant differences were observed between (1) simple sentences and more complicated ones; (2) experienced and inexperienced listeners; (3) sentences in and out of context; and (4) sentences heard and seen as opposed to merely heard. (Author/CL)

Systematic evaluation of the task demands of changes in utterance length and complexity among stuttering (N=8) and nonstuttering (N=8) three- through six-year-olds revealed that fluency breakdown was significantly correlated with gradual increases in syntactic complexity for both stuttering and nonstuttering children, as was sentence replication…

Twenty-two six-year-olds who misarticulated word-initial [r] as [w] were compared with 13 age-matched normally articulating children on ability to identify and discriminate seven synthetic stimuli representing an acoustic continuum between [we] and [re]. Results indicate that a majority of the misarticulating children have failed to phonemically…

The study compared signed and spoken English in hearing-impaired children (N=50) of hearing-impaired parents (HIP) with another group of hearing-impaired children (N=50) of hearing parents (HP). At ages seven and eight, HIP children demonstrated a significant linguistic advantage in both their spoken and signed English over HP children. (Author/DB)

Phonetic transcriptions of babbling samples from 11 normally hearing subjects, age 4-18 months, were compared with samples for 11 hearing-impaired students, age 4-28 months. Findings suggested both qualitative and quantitative differences in the babbling of the two groups. (Author/CL)

Results indicated that the two treatment conditions (speech and speech-sign) did not differ significantly for either learning or generalization with 10 Down's Syndrome three-seven year olds. The data did, however, indicate that individual patterns of acquisition were evident among the children. Caution is advised concerning automatic adoption or…

A new graphic way of summarizing information about age in relation to consonant development is proposed. (Author)

A series of three experiments was conducted with three severely retarded children to investigate the vocalization-producing potential of two antecedent conditions: adult talk (commonly cited antecedent) and adult silence. (Author/CL)

Effects of systematic use of mands (non-yes/no questions and instructions to verbalize), models (imitative prompts), and specific consequent events on the productive verbal behavior of three unresponsive, socially isolated, language-delayed preschoolers were investigated. Treatments resulted in increases in total verbalizations and nonobligatory…

The turn exchange behaviors of 5 specifically language-impaired (SLI) children, aged 8 to 13, were examined in adult-child interaction. Results indicated qualitative differences from those of normal language children in terms of turn errors, interruptions, interactive attention, responsiveness, and turn switch times, as well as variability related…

The vocal development of two identical twin male infants (one with normal hearing and one with profound bilateral hearing loss) was compared at the ages of 8, 12, and 15 months. Among major differences were format patterns of vocalic elements, histograms of syllable type, and variation in vowel usage. (Author/DB)